I have an *.ecore file and I want to have the Java classes code being generated with a "@since" tag at a certain EAttribute - e.g. "@since 2.1".

For JDocs I use an EAnnotation "http://www.eclipse.org/emf/2002/GenModel" with key "documentation" which works very well - but only for the JDoc text. I of course can add, say, a new line and the @since tag to the "documentation" value, but in the generated class the @since tag is then located "in the middle of it all" - it just doesn't look as meant to be done this way.